Method of producing a reinforcing fiber sheet
AssigneeTonen Corporation
InventorsTokuzou Ikeda, Akihiro Atsumi, Makoto Saito
Life of this patent
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Abstract
A spray device is prepared has a plurarity of nozzles each of which has a capillary tube surrounded by a gas discharge pore at the end of the nozzle. A molten resin liquid is blown out to a reinforcing fiber from the capillary tube by heated air stream discharged through the gas discharge pore, so that a binder resin layer is formed on the reinforcing fiber. Following this, a resin-permeable supporting sheet and then a back-up sheet are applied to the binder resin layer side of the reinforcing fiber, and a releasing sheet is applied to the other side of the reinforcing fiber. The thus obtained superposed layers are pressed to adhere the reinforicing fiber, the supporting fiber and the back-up sheet to each other.
Claims3
A method of producing a reinforcing fiber sheet comprising:
- providing a spray device having a plurality of nozzles each of which has a capillary tube surrounded by a gas discharge pore at the end of said nozzle;
- blowing out a molten resin liquid from a lower end of said capillary tube by a heated air stream discharged through the gas discharge pore to reinforcing fiber bundles and forming a binder resin layer on the reinforcing fiber bundles;
- applying a resin-permeable supporting sheet and then a second sheet to the binder resin layer side of the reinforcing fiber bundles, and applying a third sheet to the other side of the reinforcing fiber bundles to form superposed layers;
- and
- pressing said superposed layers to adhere the reinforcing fiber bundles, the resin-permeable supporting sheet, the second sheet and the third sheet to each other.
Dependencies are inferred from the claim text.